390 SYNOPSIS OF THE TVENIAOffi. 



indeed at least T. cucumerina are only to be regarded as occasional 

 visitors. They are found exclusively in the small intestine, which 

 they share with two Bothriocephali B. latus and B. cwdatus. 



But it is not only adult Cestodes which are found in man. He 

 also harbours a number of Tsenioid bladder- worms, viz., Cysticercus 

 cellulosce (of T. solium), Cysticercus acanthotrias (of T. sp. ?), Cysticercus 

 tenuicollis (of T. marginata) though this is not beyond doubt and 

 the Echinococcus (of T. echinococcus). Some of these grow to a very 

 considerable size, and occasion manifold dangers, from which hardly 

 any organ is exempt. Specially important, however, are the 

 Echinococcus, Cysticercus cellulosce, Tcenia saginata, T. solium, and 

 Botliriocephalus latus. 



The following synopsis shows the systematic arrangement of the 

 forms treated of in the present volume : 



FAMILY 

 Genus 



Division I. Cystici. (Cystic Tape-worms.) 

 Sub-genus Cystotccnia, Leuckart. 



1. Tcenia saginata, Goze (Tceniarhynchus, Weinland). 



2. Tcenia solium, Kudolphi (Cystotcenia sensu stricto). 



3. Tcenia acanthotrias, Weinland. 



4. Tcenia marginata, Batsch. 



Sub-genus JZchinococcifer, Weinland. 



5. Tcenia echinococcus, v. Siebold. 



Division II. Cystoidei. (Ordinary Tape-worms.) 

 Sub-genus Hymenolepis, Weinland. 



6. Tcenia nana, v. Siebold. 



7. Tcenia Jlavo-punctata, Weinland. 



Sub-genus - ? 



8. Tcenia madagascariensis, Davaine. 



Sub-genus Diphyllidium, Leuckart. 



9. Tcenia cucumerina, Kudolphi. 



